Thanks for the reply. The reason I need to rebuild it is, in my environment, I need to pass in a coverage result file( which may or may not be there already) to concatenate the result from current run. Currently, OpenCppCoverage tries to open the result
file in the beginning of the process, if the file is not found, OpenCppCoverage exists.

Do you accept feature request? Appreciated, if you can make this change and release a build.

If I understand correctly your needs, you would like OpenCppCoverage continues when you have
--input_coverage with a missing file path. Am I right?
This behaviour is done by design because most of the time a missing file is an error.

You should check whether the file exists or not and maybe
this answer can help you.